61277996 has 48 divisors (see below), whose sum is σ = 123649344. Its totient is φ = 26320896.

The previous prime is 61277981. The next prime is 61278023. The reversal of 61277996 is 69977216.

61277996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61277996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90716 + ... + 91388.

It is an arithmetic number, because the mean of its divisors is an integer number (2576028).

Almost surely, 2^61277996 is an apocalyptic number.

It is an amenable number.

61277996 is an abundant number, since it is smaller than the sum of its proper divisors (62371348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61277996 is a wasteful number, since it uses less digits than its factorization.

61277996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 808 counting only the distinct ones).

The product of its digits is 285768, while the sum is 47.

The square root of 61277996 is about 7828.0263157452. The cubic root of 61277996 is about 394.2468069799.

The spelling of 61277996 in words is "sixty-one million, two hundred seventy-seven thousand, nine hundred ninety-six".